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package proyectocatalina;

import java.awt.Graphics;
import java.awt.Image;
import javax.swing.JPanel;
//...

public class JPanelconfondo extends JPanel {
    private Image imagen;
	//...
    @Override
    public void paint(Graphics g) {
		g.drawImage(imagen, 0, 0, getWidth(), getHeight(),
                        this);

		setOpaque(false);
        super.paint(g);
    }

	//...
}
